GATE CS 2017 Set 2 — Question 54
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Question
Consider the following C Program.The output of the program is ________.
#include<stdio.h>
int main() {
int m = 10;
int n, n1;
n = ++m;
n1 = m++;
n--;
--n1;
n -= n1;
printf("%d", n);
return 0;
}
Correct answer
0 to 0
Solution
Step-by-step execution of the program:
1.
int m = 10; 2.
n = ++m; Pre-increment to 11, then assign to . So .3.
n1 = m++; Assign current value of (11) to , then post-increment to 12. So .4.
n--; Post-decrement . becomes 10.5.
--n1; Pre-decrement . becomes 10.6.
n -= n1; .7.
printf("%d", n); Prints 0.Continue learning with Success Tracker
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